Delay cancellation in VerifyStop to allow for finger removal
We currently immediately cancel the verify/identify operation in VerifyStop. However, devices tend to wait for finger removal before returning.
We should wait here. Otherwise we'll try to scan immediately without the finger having been removed. In the synaptics case the reader catches this issue for us (just causing odd notifications), but not every reader might be reacting as gracefully.
I am thinking of adding a simple timeout of e.g. 1 second.